Matching (9) Match items in column A to column B

Column a Column b
1.
A.
Mantle
2.
B.
Convection
3.
C.
Inner Core
4.
D.
Lithosphere
5.
E.
Crust
6.
F.
Core
7.
G.
Dense
8.
H.
Asthenosphere
9.
I.
Outer Core